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Finding the Fourth Proportional to 17,892.90, 24,690.69 and 10,818.90

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Solution

The fourth proportional to 17,892.90, 24,690.69 and 10,818.90 is: 14,929.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,892.90 : 24,690.69 = 10,818.90 : x
  2. Step 2: Convert to fraction form
    17,892.90/24,690.69 = 10,818.90/x
  3. Step 3: Cross multiply
    17,892.90x = 24,690.69 × 10,818.90
  4. Step 4: Simplify right side
    17,892.90x = 267,126,106.04
  5. Step 5: Solve for x
    x = 267,126,106.04/17,892.90
  6. Step 6: Final answer
    x = 14,929.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.